The use of money make it easier to exchange thing because money used as a standard mode of payment involving transaction. Example suppose A shoe maker wishes to sell his shoes and buy wheat he would sell his shoes in the market for money and use the money to buy wheat.
Example of violation of consumers right to choose are as follows When a consumer trying to choose between two products say rechargeable fan and an electric fan if the trader forces a particular product on the consumer is said to be violating the consumer right to choose.